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        <Description1Txt>THE FOUNDATION HAS NO PROGRAMS THAT CONSIST OF THE DIRECT ACTIVE CONDUCT OF CHARITABLE ACTIVITIES. THE FOUNDATION DISTRIBUTES 80%OF ITS NET INCOME TO THE MARION KOOGLER MCNAY ART MUSEUM AND 20% OF ITS NET INCOME TO THE SAN ANTONIO ZOOLOGICAL SOCIETY, INC.,BOTH OF WHICH ARE CHARITABLE EXEMPT ORGANIZATION DESCRIBED IN SECTION 501(C)(3).</Description1Txt>
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        <CategoryOrItemTxt>DETAILS SEE STATEMENT 17</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>AT COST</ListedAtCostOrFMVCd>
        <BookValueAmt>15628924</BookValueAmt>
        <EOYFMVAmt>16488313</EOYFMVAmt>
      </InvestmentsOtherGrp>
    </InvestmentsOtherSchedule2>
    <LegalFeesSchedule documentId="LegalFeesSchedule" softwareId="23017517" softwareVersionNum="2023v4.0">
      <LegalFeesGrp>
        <LegalFeesAmt>1507</LegalFeesAmt>
        <NetInvestmentIncomeAmt>1507</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </LegalFeesGrp>
    </LegalFeesSchedule>
    <OtherAssetsSchedule documentId="OtherAssetsSchedule" softwareId="23017517" softwareVersionNum="2023v4.0">
      <OtherAssetsScheduleGrp>
        <Desc>MINERAL INTEREST-ROYALTIES</Desc>
        <BOYBookValueAmt>85965</BOYBookValueAmt>
        <EOYBookValueAmt>85965</EOYBookValueAmt>
        <EOYFMVAmt>417613</EOYFMVAmt>
      </OtherAssetsScheduleGrp>
      <OtherAssetsScheduleGrp>
        <Desc>NONPRODUCING MINERAL INTEREST</Desc>
        <BOYBookValueAmt>98797</BOYBookValueAmt>
        <EOYBookValueAmt>98797</EOYBookValueAmt>
        <EOYFMVAmt>98797</EOYFMVAmt>
      </OtherAssetsScheduleGrp>
      <OtherAssetsScheduleGrp>
        <Desc>PREPAID FEDERAL INCOME TAX</Desc>
        <BOYBookValueAmt>54024</BOYBookValueAmt>
        <EOYBookValueAmt>41306</EOYBookValueAmt>
      </OtherAssetsScheduleGrp>
      <OtherAssetsScheduleGrp>
        <Desc>RESERVE FOR DEPLETION</Desc>
        <BOYBookValueAmt>-84101</BOYBookValueAmt>
        <EOYBookValueAmt>-84287</EOYBookValueAmt>
      </OtherAssetsScheduleGrp>
      <OtherAssetsScheduleGrp>
        <Desc>Rounding</Desc>
        <BOYBookValueAmt>1</BOYBookValueAmt>
        <EOYBookValueAmt>1</EOYBookValueAmt>
      </OtherAssetsScheduleGrp>
    </OtherAssetsSchedule>
    <OtherDecreasesSchedule documentId="OtherDecreasesSchedule" softwareId="23017517" softwareVersionNum="2023v4.0">
      <OtherDecreasesDetail>
        <Desc>FEDERAL EXCISE TAX</Desc>
        <Amt>12718</Amt>
      </OtherDecreasesDetail>
    </OtherDecreasesSchedule>
    <OtherExpensesSchedule documentId="OtherExpensesSchedule" softwareId="23017517" softwareVersionNum="2023v4.0">
      <OtherExpensesScheduleGrp>
        <Desc>FOREIGN TAX PAID</Desc>
        <RevenueAndExpensesPerBooksAmt>-309</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>-309</NetInvestmentIncomeAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>ROYALTY DEPLETION</Desc>
        <RevenueAndExpensesPerBooksAmt>20881</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>186</NetInvestmentIncomeAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>ROYALTY OTHER COSTS</Desc>
        <RevenueAndExpensesPerBooksAmt>4753</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>4753</NetInvestmentIncomeAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>ROYALTY PRODUCTION TAXES</Desc>
        <RevenueAndExpensesPerBooksAmt>20983</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>20983</NetInvestmentIncomeAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>ROYALTY PROPERTY TAXES</Desc>
        <RevenueAndExpensesPerBooksAmt>2042</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>2042</NetInvestmentIncomeAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncomeSchedule2 documentId="OtherIncomeSchedule2" softwareId="23017517" softwareVersionNum="2023v4.0">
      <OtherIncomeDetail>
        <Desc>ROYALTY INCOME</Desc>
        <RevenueAndExpensesPerBooksAmt>139204</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>139204</NetInvestmentIncomeAmt>
      </OtherIncomeDetail>
    </OtherIncomeSchedule2>
    <OtherIncreasesSchedule documentId="OtherIncreasesSchedule" softwareId="23017517" softwareVersionNum="2023v4.0">
      <OtherIncreasesDetail>
        <Desc>DEPLETION IN EXCESS OF COST</Desc>
        <Amt>20695</Amt>
      </OtherIncreasesDetail>
    </OtherIncreasesSchedule>
    <OtherLiabilitiesSchedule documentId="OtherLiabilitiesSchedule" softwareId="23017517" softwareVersionNum="2023v4.0">
      <OtherLiabilitiesDetail>
        <Desc>BEQUEST PAYABLE</Desc>
        <BOYBookValueAmt>500</BOYBookValueAmt>
        <EOYBookValueAmt>500</EOYBookValueAmt>
      </OtherLiabilitiesDetail>
    </OtherLiabilitiesSchedule>
  </ReturnData>
</Return>
